Mixing device



y 1930; F. w. HENDERSON 1,758,111

MIXING DEVICE Filed July 11, 1927 anaemic z flew/m m/mmm Patented May13; 1930 UNITED STATES "EEE'nEEIoK w; HEnnERsON, OE SEATTLE,

CORPORATION, .A GOR ORATION E wnsHING'roN WASHINGTON; ASSIGNOR 'ro HENEES'ON mxme nEvIo 7 Application filed July-1i, 1927. Serial 110,204,776.

The invention is adevice for mixing and beating substances such as eggsor'cream in which the. rotating elements dip downward below the pivotpoint and rotate in 'oppo site directions about acommon center.

The object of the invention is to provide a simple and eflicient devicefor beating and mixing substances, which operates with considerableefiiciency and picks up the substance from a substantially flatcontainer.

Another object of the invention is tovprovide a mixing and beatingdevicein which the rotating elements fold within each other. and withina common flat frame so that they are protected when not in -use.; 1Another object of the invention is to provide a beater and mixer inwhich the beating elements have the same peripheral contour and foldwithin each other about a common center.

A further object of the invention is to'provide a mixerand beater inwhich the axis of a the handle by which the device is rotated isperpendicular to the handle by which the de- Vice is held.

A still further object of the invention is to provide a beater and mixerhaving tworotating elements in which each elementis provided withapinion and both pinions are o operated in opposite directions by acommon ear. D And a still further object of the invention is to providea beater and mixer which is durable and which is of a simple andeconomical constructi-om L v With these ends in view the inventionembodies a frame formed of a flat bar with the lower end substantiallyshaped to thecontour of apear, wi'th a raisedpivotpoi-nt in the centerof the bottom and theupper portion surrounding. and forming bearings forall moving parts; androtating elements of the same. peripheral contourasthe frame r0- tatably mounted about a commoncenter in the frame andOperated by a common gear with a handle by which it is manually rotated.The device may also'be provided with a motor by which it may be rotated.

Other features and advantages ofthe .invention will appear from thefollowing description, taken in connection with the drawings, wherein: Zt i Figure 1 1s a slde new of the device.

Figure2 is a view looking toward one edge:

of the device. 7 v t Figure 3 is a sectional planon line 3-,3

of Figure 1 showing the. shaft and bearingformed in the frame with. thegearomitted. Figure 4 is a'section on line 4-4 of Figure 1.

. Figure 5 is a sectional view on line 5i5 of.

Figure. 1. I 1 V v Figure MS a view showing an alternate arrangement inwhich thedeviceis Operated by amotor and the gears'arrangedaccordingly.In the drawings the device is shown as it would be made wherein numeral1 indicates the frame of the device, numeral 2 the main gear foroperatingthe device and numeral 3 a motor that-may be'used with thedevice.

The frame lis made as shown with a flat piece of material bent midway ofitslength to form a flat section 4 touwhich the rotatingmembersarepivotedon a pin 5 and from the section 4 the bar bendsdownward and is then curved upward and then inward and upward to thepoint 6 as shown in Figure 1. From the point 6 the sections of the barbend outward, upward and inward to form a'pocket 7 as shown and from thepocket 7 thebars extend upward to the point 8. where they bend outward,upward and theninward' to form an opening 9 and from the opening 9theyextend upward to the point 10. From the point 10 the bars are bentoutward, upward and inward to form a pocket 11 and then extend straightupward from the upper side of the.

pocket. The'han'dle 12 is fixedly attached to the upper ends of the bar.It will be noted that the section between the pockets 7 and 11 and theopening 9 is formed as shown in Figure 4 to provide abearing for a shaft13 that is rotatably held therein. It-will be noted that this frameprovides bearings for the shaft, pockets for'the gears and formsacontinuous guard around the rotatingv members within the limits of whichthe rotating membersmay be placed when not in use so that they will be'protected.

Art

the upper end and the gear l i'is'located inthe" pocket 11 and mesheswith the openings lo.

in the gear 2. The shaft 13 extends 'downward and at the lower @KClSlS}a me'mber 16 which is clamped to the shaft by a band 17. It Will benoted in iEigure 52th'a-t piointsimay be upset from the shaft'whichawillizextend between 'th'e edges of the member 116 .to preventthismember rotating em. thee shafts This member may be extended androlldatoform':

theshaft thereby forming one continuous member. i The member 16': isformed' oflaflat bar-Jwhich -=is-:bent and-curved as shownvwitheaehpoint parallel' tofl thei fr'ameeancliiwvith the center of thebottom pivoted upon the pin: 5 of-tlie frame: A geanifl8tisfreelymounted upon the shaft 13 in the pocket 7 andthe'ends ofZ a m'em-ber191*are' fiig'edl-y attachedito: the gear l8 as shown's The member 19is: also' matle at: aflah'bariwhichmends iand'; curves so that everypointithereint is :par-allel: tozthe frame liandithe rinnerfimember:'16', :and ithis bar! is ialso: pi=votedigimtheecenter' f:- the; baseuporrthe pinr5f The members :16randi19 may bewprovided'iwithlsaxw toothedges,- and they and the fr'ameimay'be 'of any suitable shape with someor more: :of the'i members dipping belowwtheicenteri or-"pivots Washers:20 and 21 im'ayibe providediiormthe pin. between= the members- 16* and119' andithei frame as shown. Th'ekgear l& alsoi'imesheswith theaopenings incthe gean2zand tliergeari2:is provided-with a handle 22f-which' isattached to a: 1. proj'ec-t t-ionr23z so: that it w may 5 readily be;rotated; I t 'wi'llibe i observedgthat asthe 1 gear12- iis: roe tat'edit will'rotate the='gears 14 and118zin opposites-directions- P The: gear2i'is rotatably moimt'edllon' a? pin 241" which is attached I to aUtshaped clamp 25' andthe 012111113125 is held between -the'members ofithe? frame l' and in theopening 95'; 'Sectionsrfifi are formed from theside mam-be11s ofrtheelarmpQEiandithe sec tionsv-26 eXtend.,-throughopenings; in and .are riveted torthe. side members of zthe franie 1 as,shownziniFigure Itussunderstood that any; othensuitable means} may ebeused'i-for attaoliing the clamp and {gears to the frame. I tlwillfalso,b'esnoted tgasfthe' gear 2 is rotated itfwillfrotatejthe gears 1'4and-18 in opposite directions and thereby rotate; the members "1" 6'.iand 19," in opposite directions.

h Iiftlie design *shownjn tF'igurefi the device is providedwith e -motor3 having a handle and lding provided With a gear casi ng 28 having alarge geai "29 thr,ein whichlhas teeth 30 on the side of its outer edgeasshown. The teeth 30 mesh with a gear 31 on a motor shaft which causesthe gear 29 to rotate with the motor and in the center of thegear 29 isa ring of openings 32 that mesh with gears 33,;and 84. The gear .33 :isfixedly; mounted on--a;shafti35 -whieh extendsxthrough aisocket.36iat4the1end of the casing 28 and is provided wi h a joi t 7 w i hex ennto e d-1 I ofar shaft 38" so thatwhen'the device is at tached' it"will" "'cause "the'"shaft 38 to rotate with-,the motor. The shaft 38 issimilar to th'e'sliaft 13 and the inner members 16 are rigidly;attached-thereto asshown. The gear 34 is mounted upon a sleeve 39 whichis rotatable om azsliaftt35 :'and. -the sleeve 1 is also: :pro-

videdriwitha soeketAO bywhiclr it: is connected tou'themnemberi41-\:so1that as the 1 gears :31; and:

34a'rotateithey will win turn; rotate the membersl6iandz-l9vinioppositedirections At the endiof'the casing 28 is'anaextensiona lQhaving a pin'i thereom and it. willabezobs erved. thatthe L-SOGkGt 136s will slide": over: the extension; 42 i'andthei'pinzi43 maybe placed into the slot 44 toh'ol'dthe socketiin'iplacez The upwardly extending members i of: theufra'mecl; rwhichlinthe idesiglneareeindicated' byi thee numeral 45,-

mayvbe rattachedu-to the $111Y$C6i0f .thersocket 36 asshowniinzthedrawin'gs It-is alsoiunder stood thatanyr-eotherttype-iofzsocketzmay be; used to attach; sthe frame androtating amenibers'torthe miotorand-any other-suitable gear mechanism":may be used through which the motommay driveatheumenrbers 16* and :19 inopposite directions. a

It will beeunderstood fizhatichangesmayibe madezin; the constr.uc.t-ione without 1 -dep arting from'ithe spirit: ofjthe invention, one' of;which changesamay be inzthe exact" design'= of:;the frame, as it isunderstood the frame-maybe madeuiriianyl'other suitabl idesignu Anothermay be in the: arrangement "of 1 the gears for operatingq the: deviceand still anoth'en' may be. in the-arrangement of the bearings or l1andleof -tl1e frame;'-

The construction will be readily understood fromthe foregoing.description;- Normally the device mayrest with therotatingmemb'ersfolde'd within-*the'liinits of the' frame; so that they are protectedthereby; andit Willi be o-bserve c l' that "when-it is desired to use;the device it may be held in theleft'liand by the larger than the other,and the larger enveloping the smaller, said rotating elements beingpivoted at the bottom in the center and extending downward below thepivot point between the center and outer edge.

2. A beater having two oppositely rotating elements of the sameperipheral contour,

rotating about the same axis, one being slightly smaller than androtating inside of the other, said rotating elements being pivoted atthe bottom in the center and extending downward below the pivot pointbetween the center and outer edge.

3. A beater having two oppositely rotating elements of' the sameperipheral contour, rotating about the same axis, one being slightlysmaller than and rotating inside of the other,said elements being of apear shape with the outer corners dipping downward below the pivot atthe center. 7

4. A beater having two oppositely rotating elements of the sameperipheral contour, rotating about the same axis, one being slightlysmaller than and rotating inside of the other, said rotating elementsbeing substantially of a pear shape and pivoted in the center at thebottom and said pivot point extending upward so that the outer cornersof the elements are below the pivot point.

5. A beater having two oppositely rotating elements of the sameperipheral contour, ro-

tating about the same axis, one being slightly smaller than and rotatinginside of the other, and a single continuous frame surroundmg theheaters and surrounding and forming a" bearing for all moving parts anda rest for free operation of the heater.

6. A beater having two oppositely rotating elements of the sameperipheral contour, rotating about the same axis, one being slightlysmallerthan and rotating inside of the other, gears meshing with acommon gear at the upper ends of the elements by which they may berotated, and a single continuous frame surrounding the beaters, housingthe drive mechanism and alone forming a bearing for and protecting allmoving parts.

7. In. a mixing and beatingfdevice having a plurality of rotatingelements the forming of the said elements so that they will dip belowthe point at which they are pivoted at the bottom.

8. In a mixing and beating device of the class described, a continuousone piece frame bent to form a guard for themixing elements and also toform bearings, a handle at the upper end of the frame, a rotatable shaftmounted inthe' bearings of the said frame, a

gear fixedly mounted onone end ofthe said shaft, another gear rotatablymounted on the said shaft, another gear pivotally mounted midway betweenthe gears and meshing with both of the gears to. rotate them in oppositedirections, a crank for-rotating thesaid latter gear, a barbent in theform ofthe conmanor a pear attached to the lowerend of thesaid shaft andalso pivotally heldin the center of the base of the saidframe, andanother 'silmilar bar between the said former bar and the frame havingits ends attached to the gear that is rotatablymounted on the said shaftand its opposite end pivotally attachedto the center of the b'aseof theframe, the outer portions of the said bars and frame dipping below thepivot at the centerof the bottom. p V

9. In a device of the class described, a beater having a plurality ofparallel rotating elements, rotating about a common center in which someof the elements are curved to exfiend downward below a pivot point inthe ase.

described, a plurality of rotatable elements adaptable to fold intothemselves, each of the and means for rotating the said bars, said barsdipping downward between the point at which they are pivoted at thecenter o-f the bottom and the outer edge I f 12'. In a mixing andbeating device of the class described, a plurality of bars parallel atall points and positioned to rotate in opposite directions about acommon center, said bars dipping downward between the point at whichthey are pivoted at the center; ofthe bottom and the outer edge.

18. In a mixing and beating device, a'plurality of bars, some smallerthan others, in

which the sides are parallel at all points, said bars being mounted andpositioned to rotate in opposite directions about a common center, andmeans for operating the'said bars,

said bars dipping downward between" the point atwhich-they are pivotedat the center of the bottom and the outer edge.

' 14. In a-mixing and beating device, a plurality of bars in which thesides are parallel at all points, said bars being mounted and positionedto rotate in opposite directions and within each other about a commoncenter I i 10. In a mixing device or beater of the class Q tlally; of apear shape','means for operatlng the, said bars, and a suitable frame ofthe. same shape as the bars in which the said deand being; substantiallyof a pear shape, and means'for operating the said bars, said barsdipping downward/between.the point at.

which they are pivoted at the center of the bottom and the outer edge.

15;, Ina mixing and beating device, a pluralityofbarsin whichthe sidesare parallel at-alli points, i said; barsg being mounted and posltionedto rotate inf opposite directionsabout a common center, and being,substanvice is mounted,=said bar-s lying within 'the frame andprotected? by it whenatrest.

16. A beater and mixer of the class described, having aplurality of barsbent substantiallyin the-shape of a pear,.said bars-being attached togears at the upper ends and av commonYgear'by which the said device may.be operated, through the former gears, said bars dipping; downwardbetween the point at which they are pivoted at thecenter-of the bottomandthe outer edge.

17. In a mixing and heating device of the class. described, aplurality-of flat bars bent substantiallyuto a-pear shape with each barparallel tothe-other at all;points, a frame of the sameshape-surrounding; the bars, and a plurality of gears arranged to-rotatethe intermediate bars inopposite directions, said bars dipping-downwardbetween the point at whichlthey are pivoted at the center of the bottomand the outer edge.

18. In adevice of the class described, two heating elements, onewithin'the-other and folding parallel; to each other and also'parallelto and-lying within acontinuous station ary'frame. V V

19. Ina mixing and beating device of the class described, a, pluralityof flat bars bent substantially to apear shape with each bar parallel t6theother, at all points, a frame of the same shape surrounding the bars,a plurality of gearsa'rranged' to rotate the intermediate bars' in,opposite directions, and means for-readily operating the said device bya small motor, said motor being adaptable tozbe readily attached ordetached from the said device.

In testimony whereof I. aflix mysignature. FREDERICK; IV. HENDERSON;

